a Partially tighten the first screw (approximately 3 turns).
b Tighten the second screw completely.
c Return to the first screw and tighten it completely.
If the PHM slips off the blue retention clips when the screws are partially tightened, follow these steps to secure the PHM:
a
Loosen both the heat sink screws completely.
b
Lower the PHM on to the blue retention clips, following the procedure described in step 2.
c
Secure the PHM to the system board, following the replacement instructions listed in the earlier step 4.
NOTE:
Do not tighten the processor and heat sink module retention screws to more than 0.13 kgf-m (1.35 N.m or 12 in-
lbf).
Figure 37. Installing a processor and heat sink module
Next steps
1
Follow the procedures in
After working inside your system
2
Install the
Expansion cards and expansion card risers
An expansion card in the system is an add-on card that can be inserted into an expansion slot on the system board or a slot on a riser card
to add enhanced functionality to the system through the expansion bus.
NOTE:
A System Event Log (SEL) event is logged if an expansion card riser is not supported or missing. It does not prevent your
system from turning on. However, if a F1/F2 pause occurs and an error message is displayed.
80
Installing and removing system components
